Mask secures personal displays

[Thomas Shaddack]

>  Yamamoto is also optimistic that this technique will find commercial
> applications. "Display of secret information on PDA and computer screens
> are practical applications," he explained. "Other business applications
> include: securing the screen of a terminal at a bank; an operator screen
> that shows personal information; and a touch panel screen of a safe."

Question: if there is a goggle version, why not use a "real" wearable
display instead, eg, the kind by www.microopticalcorp.com ?